A High-Similarity Modeling Method for Low-Porosity Porous Material and Its Application in Bearing Cage Self-Lubrication Simulation

The porous oil-containing cage achieves the storage, spillage, and suction of lubricating oil by its micro-pore structure, thus ensuring the self-lubricating performance of the bearing. Carrying out fast and accurate modeling of the cage microscopic pore structure is the key to the analysis of the s...

Full description

Bibliographic Details
Main Authors: Jiannan Sun, Ke Yan, Yongsheng Zhu, Jun Hong
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/18/5449
id doaj-66855816fac74fd289ad8ed65091a204
record_format Article
spelling doaj-66855816fac74fd289ad8ed65091a2042021-09-26T00:37:39ZengMDPI AGMaterials1996-19442021-09-01145449544910.3390/ma14185449A High-Similarity Modeling Method for Low-Porosity Porous Material and Its Application in Bearing Cage Self-Lubrication SimulationJiannan Sun0Ke Yan1Yongsheng Zhu2Jun Hong3Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi’an Jiaotong University, Xi’an 710049, ChinaKey Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi’an Jiaotong University, Xi’an 710049, ChinaKey Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi’an Jiaotong University, Xi’an 710049, ChinaKey Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi’an Jiaotong University, Xi’an 710049, ChinaThe porous oil-containing cage achieves the storage, spillage, and suction of lubricating oil by its micro-pore structure, thus ensuring the self-lubricating performance of the bearing. Carrying out fast and accurate modeling of the cage microscopic pore structure is the key to the analysis of the self-lubricating mechanism of bearings. In response to the issues where current modeling methods of porous materials have a low similarity of pore distribution, morphology, structure, and size characteristics, and the transition of pore surfaces is sharp, this paper proposed a modeling method of a highly similar micro-pore structure based on the idea of median filtering, the quartet structure generation set (QSGS), and the slice method. By extracting and analyzing the pore characteristics of the porous model and comparing them with the experimental results of CT scanning, the advantages of the modeling method in terms of morphology and pore connectivity were verified. Finally, by carrying out simulation analysis of the centrifugal force of oil splashing and capillary oil absorption on the constructed model by combining the parameters of porous structures such as porosity and tortuosity, the advantages of the modeling method in the construction of the porous model and multi-physical field analysis were further verified.https://www.mdpi.com/1996-1944/14/18/5449porous oil-bearing cagemedian filterquartet structure generation setslice methodpore structure modelsimulation
collection DOAJ
language English
format Article
sources DOAJ
author Jiannan Sun
Ke Yan
Yongsheng Zhu
Jun Hong
spellingShingle Jiannan Sun
Ke Yan
Yongsheng Zhu
Jun Hong
A High-Similarity Modeling Method for Low-Porosity Porous Material and Its Application in Bearing Cage Self-Lubrication Simulation
Materials
porous oil-bearing cage
median filter
quartet structure generation set
slice method
pore structure model
simulation
author_facet Jiannan Sun
Ke Yan
Yongsheng Zhu
Jun Hong
author_sort Jiannan Sun
title A High-Similarity Modeling Method for Low-Porosity Porous Material and Its Application in Bearing Cage Self-Lubrication Simulation
title_short A High-Similarity Modeling Method for Low-Porosity Porous Material and Its Application in Bearing Cage Self-Lubrication Simulation
title_full A High-Similarity Modeling Method for Low-Porosity Porous Material and Its Application in Bearing Cage Self-Lubrication Simulation
title_fullStr A High-Similarity Modeling Method for Low-Porosity Porous Material and Its Application in Bearing Cage Self-Lubrication Simulation
title_full_unstemmed A High-Similarity Modeling Method for Low-Porosity Porous Material and Its Application in Bearing Cage Self-Lubrication Simulation
title_sort high-similarity modeling method for low-porosity porous material and its application in bearing cage self-lubrication simulation
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2021-09-01
description The porous oil-containing cage achieves the storage, spillage, and suction of lubricating oil by its micro-pore structure, thus ensuring the self-lubricating performance of the bearing. Carrying out fast and accurate modeling of the cage microscopic pore structure is the key to the analysis of the self-lubricating mechanism of bearings. In response to the issues where current modeling methods of porous materials have a low similarity of pore distribution, morphology, structure, and size characteristics, and the transition of pore surfaces is sharp, this paper proposed a modeling method of a highly similar micro-pore structure based on the idea of median filtering, the quartet structure generation set (QSGS), and the slice method. By extracting and analyzing the pore characteristics of the porous model and comparing them with the experimental results of CT scanning, the advantages of the modeling method in terms of morphology and pore connectivity were verified. Finally, by carrying out simulation analysis of the centrifugal force of oil splashing and capillary oil absorption on the constructed model by combining the parameters of porous structures such as porosity and tortuosity, the advantages of the modeling method in the construction of the porous model and multi-physical field analysis were further verified.
topic porous oil-bearing cage
median filter
quartet structure generation set
slice method
pore structure model
simulation
url https://www.mdpi.com/1996-1944/14/18/5449
work_keys_str_mv AT jiannansun ahighsimilaritymodelingmethodforlowporosityporousmaterialanditsapplicationinbearingcageselflubricationsimulation
AT keyan ahighsimilaritymodelingmethodforlowporosityporousmaterialanditsapplicationinbearingcageselflubricationsimulation
AT yongshengzhu ahighsimilaritymodelingmethodforlowporosityporousmaterialanditsapplicationinbearingcageselflubricationsimulation
AT junhong ahighsimilaritymodelingmethodforlowporosityporousmaterialanditsapplicationinbearingcageselflubricationsimulation
AT jiannansun highsimilaritymodelingmethodforlowporosityporousmaterialanditsapplicationinbearingcageselflubricationsimulation
AT keyan highsimilaritymodelingmethodforlowporosityporousmaterialanditsapplicationinbearingcageselflubricationsimulation
AT yongshengzhu highsimilaritymodelingmethodforlowporosityporousmaterialanditsapplicationinbearingcageselflubricationsimulation
AT junhong highsimilaritymodelingmethodforlowporosityporousmaterialanditsapplicationinbearingcageselflubricationsimulation
_version_ 1716870257623171072